Home / 638,675.13-881,331.44-366,551.50

Finding the Fourth Proportional to 638,675.13, 881,331.44 and 366,551.50

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Solution

The fourth proportional to 638,675.13, 881,331.44 and 366,551.50 is: 505,817.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,675.13 : 881,331.44 = 366,551.50 : x
  2. Step 2: Convert to fraction form
    638,675.13/881,331.44 = 366,551.50/x
  3. Step 3: Cross multiply
    638,675.13x = 881,331.44 × 366,551.50
  4. Step 4: Simplify right side
    638,675.13x = 323,053,361,329.16
  5. Step 5: Solve for x
    x = 323,053,361,329.16/638,675.13
  6. Step 6: Final answer
    x = 505,817.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.